High-Speed Pulsation of a Cryogenically Operable Bipolar Photodiode Module for the Josephson Arbitrary Waveform Synthesizer
Peer reviewed, Journal article
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Original versionKarlsen, B., Bardalen, E., Nissilä, J., Fordell, T., Kieler, O., Palafox, L., ... & Ohlckers, P. (2020). High-Speed Pulsation of a Cryogenically Operable Bipolar Photodiode Module for the Josephson Arbitrary Waveform Synthesizer. In 2020 Conference on Precision Electromagnetic Measurements (CPEM). https://doi.org/10.1109/CPEM49742.2020.9191751
This paper describes the development and testing of a prototype of a cryogenically operable bipolar photodiode module. Optical pulsation systems based on both a Mach-Zehnder modulator and a mode-locked laser have been used to measure the response of various samples, while immersed in liquid helium. Pulse widths down to 37 ps have been measured. By modifying the Mach-Zehnder-based system, a bipolar electrical pulse train has also been demonstrated from the module.